After a public fight between its board and Chip Wilson, its founder and No. 1 shareholder, on Wednesday, the yoga-inspired athletic retailer on Thursday didn’t give investors any reason for confidence, after revealing a disappointing second quarter and lowered full-year guidance.

RadioShack Corp.’s troubles and mounting losses amid declining sales have been well noted, and they have also led Wall Street analysts to slash their target price on the stock, with a range this year of $1 to $3 a share.

However, that changed on Wednesday after B Riley analyst Scott Tilghman, who already rates the stock a sell, lowered his price target to zero from $1 a share

Struggling RadioShack Corp. has given itself a year to execute its turnaround, but it’s on a short leash.

The company’s shares, after having plunged from a five-year peak of $23.86 in April 2010, dived as much as 14% on Tuesday and were most recently trading down 10% to $1.39. Investors dumped the stock after its first-quarter loss was about double the average Wall Street estimate and comparable sales fell a disappointing 14%. Its cash and cash equivalents also slumped two thirds since Dec. 31.

J.C. Penney Co.
/quotes/zigman/237947/quotes/nls/jcpJCP, after seeing its stock plunge to a near 13-year low, shot back at critics Thursday, reminding them that it still expects same-store sales to go positive before the end of the third quarter and remain there through the rest of the year.

About Behind the Storefront

Behind the Storefront is a blog about all things retail. It’s aimed at investors, shoppers and anyone else with a passion for learning about what drives consumer behavior. Hosted by Andria Cheng, Behind the Storefront will cover the business, brands and shopping behavior that’s behind some of the biggest companies, and largest employers, in the world. You can reach Andria at Acheng@marketwatch.com.